Background: Stereotactic radiotherapy (SRT) is an attractive treatment option for patients with brain metastases (BM), sparing healthy brain tissue and likely controlling local tumors. Most previous studies have focused on radiological response or survival. Our randomized trial (NCT02353000) investigated whether quality of life (QoL) is better preserved using SRT than whole-brain radiotherapy (WBRT) for patients with multiple BM. Recently, we published our trial’s primary endpoints. The current report discusses the study’s secondary endpoints. Methods: Patients with 4 to 10 BM were randomly assigned to a standard-arm WBRT (20 Gy in 5 fractions) or SRT group (1 fraction of 15–24 Gy or 3 fractions of 8 Gy). QoL endpoints—such as EQ5D domains post-treatment, the Barthel index, the European Organisation for Research and Treatment of Cancer (EORTC) questionnaires, and the neurocognitive Hopkins Verbal Learning Test—were evaluated. Results: Due to poor accrual resulting from patients’ and referrers’ preference for SRT, this study closed prematurely. The other endpoints’ results were published recently. Twenty patients were available for analysis (n=10 vs. n=10 for the two groups, respectively). Significant differences were observed 3 months post-treatment for the mobility (P=0.041), self-care (P=0.028), and alopecia (P=0.014) EQ5D domains, favoring SRT. This self-care score also persisted compared to the baseline (P=0.025). Multiple EORTC categories reflected significant differences, favoring SRT—particularly physical functioning and social functioning. Conclusions: For patients with multiple BM, SRT alone led to persistently higher QoL than treatment with WBRT. Trial Registration: ClinicalTrials.gov, NCT02353000.
|Number of pages||13|
|Journal||Annals of palliative medicine|
|Publication status||Published - Apr 2022|
Bibliographical noteFunding Information:
This paper’s authors thank our data safety commission (Dr. An Hoeben, Dr. Monique Anten, and Dr. Peter Koehler), and particularly Rody Zuidema and Ruud Hoeben, for their commitment and contribution to this trial. Funding: MAASTRO has a research agreement with Varian Medical Systems, Palo Alto, which provided funding for this trial. The Data Center was responsible for collecting and maintaining the study’s data. Authors acknowledge financial support from ERC advanced grant (ERC-ADG-2015 No. 694812 - Hypoximmuno), ERC-2020-PoC: 957565-AUTO. DISTINCT. Authors also acknowledge financial support from SME Phase 2 (RAIL No. 673780), the European Union’s Horizon 2020 research and innovation programme under grant agreement: ImmunoSABR No. 733008.
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